import java.util.Scanner;
public class Main{
public static void main(String[]args){
Scanner st = new Scanner(System.in);
int i = 0;
String[] str=new String[100];
while(st.hasNext()){
String a=st.nextLine();
if(a.equals("end"))break;
str[i]=a;i++;
}
String b=st.nextLine();
String c=st.nextLine();
for(int j=0;j<i;j++){
System.out.println(str[j].replace(b,c));
}

}
}